US4059562AExpiredUtilityPatentIndex 72

Liquid stabilizer systems and vinyl halide resin compositions containing same

Assignee: TENNECO CHEMPriority: Mar 21, 1977Filed: Mar 21, 1977Granted: Nov 22, 1977

Est. expiryMar 21, 1997(expired)· nominal 20-yr term from priority

Inventors:HOCH SAMUEL CEPRINI MARIO Q SZABO EMERY

C08K 5/00C08K 5/58C08K 5/053C08K 5/521C08K 5/52C08K 5/05

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References

Claims

Abstract

Vinyl halide resin compositions that are characterized by excellent early color and color hold, excellent long term heat and light stability, and good processability contain a liquid stabilizer system that comprises A. 40% to 90% by weight of an organotin ethanol mercaptide having the structural formula ##STR1## WHEREIN EACH R represents an alkyl group having 1 to 8 carbon atoms, R' represents --SCH 2 CH 2 OH, --SCH 2 COOR", or --SR", R" represents an alkyl group having 6 to 18 carbon atoms, a, b, m, and n each represents 1 or 2, X represents 0 or 1, When X is 0, m + n + b = 4, and When X is 1, m + n = 3 and a + b = 3; B. 10% to 60% by weight of a liquid alcohol component comprising a glycol having 2 to 10 carbon atoms; and C. 0.1% to 1% by weight of an alkyl acid phosphate.

Claims

exact text as granted — not AI-modified

What is claimed is: 
     
       1. A liquid stabilizer system for vinyl halide resin compositions that comprises a. 40% to 90% by weight of an organotin ethanol mercaptide having the structural formula ##STR6##  wherein each R represents an alkyl group having 1 to 8 carbon atoms, R&#39; represents --SCH 2  CH 2  OH, --SCH 2  COOR&#34;, or --SR&#34;;   R&#34; represents an alkyl group having 6 to 18 carbon atoms;   a, b, m, and n each represents 1 or 2;   X represents 0 or 1;   when X is 0, m + n + b = 4; and   when X is 1, m + n = 3 and a + b = 3;   b. 10% to 60% by weight of a liquid alcohol component comprising a glycol having 2 to 10 carbon atoms; and   c. 0.1% to 1% by weight of an alkyl acid phosphate selected from the group consisting of monoalkyl acid phosphates, dialkyl acid phosphates, and mixtures thereof, in which each alkyl group has from 1 to 10 carbon atoms.   
     
     
       2. A liquid stabilizer system as defined in claim 1 that comprises a. 60% to 90% by weight of the organotin ethanol mercaptide;   b. 10% to 40% by weight of the liquid alcohol component; and   c. 0.2% to 0.6% by weight of the alkyl acid phosphate.   
     
     
       3. A liquid stabilizer system as defined in claim 1 wherein the organotin ethanol mercaptide has the structural formula ##STR7## wherein R represents an alkyl group having 1 to 8 carbon atoms; R® represents --SCH 2  COOR&#34; or --SR&#34;, R&#34; represents an alkyl group having 6 to 18 carbon atoms;   b, m, and n each represents 1 or 2; and   m + n + b = 4.   
     
     
       4. A liquid stabilizer system as defined in claim 3 wherein the organotin ethanol mercaptide is monobutyltin mono(isooctyl thioglycolate) di(ethanol mercaptide). 
     
     
       5. A liquid stabilizer system as defined in claim 3 wherein the organotin ethanol mercaptide is dibutyltin mono(isooctyl thioglycolate) mono(ethanol mercaptide). 
     
     
       6. A liquid stabilizer system as defined in claim 3 wherein the organotin ethanol mercaptide is monobutyltin mono(dodecyl mercaptide) di(ethanol mercaptide). 
     
     
       7. A liquid stabilizer system as defined in claim 1 wherein the organotin ethanol mercaptide has the structural formula ##STR8## wherein each R represents an alkyl group having 1 to 8 carbon atoms; R&#39; represents --SCH 2  CH 2  OH, --SCH 2  COOR&#34;, or --SR&#34;;   R&#34; represents an alkyl group having 6 to 8 carbon atoms;   a, b, m, and n each represents 1 or 2;   a + b = 3; and   m + n = 3.   
     
     
       8. A liquid stabilizer system as defined in claim 7 wherein the organotin ethanol mercaptide is bis[monobutyltin di(ethanol mercaptide)]sulfide. 
     
     
       9. A liquid stabilizer system as defined in claim 7 wherein the organotin ethanol mercaptide is [dibutyltin mono(dodecyl mercaptide)][dibutyltin mono(ethanol mercaptide)] sulfide. 
     
     
       10. A liquid stabilizer system as defined in claim 1 wherein the liquid alcohol component comprises hexylene glycol. 
     
     
       11. A liquid stabilizer system as defined in claim 1 wherein the liquid alcohol component comprises hexylene glycol and an alkanol having 4 to 18 carbon atoms. 
     
     
       12. A liquid stabilizer system as defined in claim 1 wherein the alkyl acid phosphate is secondary 4-methylpentyl acid phosphate. 
     
     
       13. A heat and light stable resinous composition comprising a vinyl halide resin and 0.2 percent to 5 percent by weight, based on the weight of the vinyl halide resin, of a liquid stabilizer that comprises 40% to 90% by weight of an organotin ethanol mercaptide having the structural formula ##STR9##  wherein each R represents an alkyl group having 1 to 8 carbon atoms; R&#39; represents --SCH 2  CH 2  OH, --SCH 2  COOR&#34;, or --SR&#34;;   R&#34; represents an alkyl group having 6 to 18 carbon atoms;   a, b, m, and n each represents 1 or 2;   X represents 0 or 1;   when X is 0, m + n + b = 4; and   when X is 1, m + n = 3 and a + b= 3;   b. 10% to 60% by weight of a liquid alcohol component comprising a glycol having 2 to 10 carbon atoms; and   c. 0.1% to 1% by weight of an alkyl acid phosphate selected from the group consisting of monoalkyl acid phosphates, dialkyl acid phosphates, and mixtures thereof, in which each alkyl group has from 1 to 10 carbon atoms.   
     
     
       14. A heat and light stable resinous composition as defined in claim 13 wherein the vinyl halide resin is polyvinyl chloride. 
     
     
       15. A heat and light stable resinous composition as defined in claim 13 that contains from 0.3% to 3% by weight, based on the weight of the vinyl halide resin, of the stabilizer system. 
     
     
       16. A heat and light stable resinous composition as defined in claim 13 wherein the liquid stabilizer system comprises a. 60% to 90% by weight of the organotin ethanol mercaptide;   b. 10% to 40% by weight of the liquid alcohol component, and   c. 0.2% to 0.6% by weight of the alkyl acid phosphate.   
     
     
       17. A heat and light stable resinous composition as defined in claim 13 wherein the organotin ethanol mercaptide has the structural formula ##STR10## wherein R represents an alkyl group having 1 to 8 carbon atoms; R° represents --SCH 2  COOR&#34; or --SR&#34;; R&#34; represents an alkyl group having 6 to 18 carbon atoms;   b, m, and n each represents 1 to 2; and   m + n + b = 4.   
     
     
       18. A heat and light stable resinous composition as defined in claim 17 wherein the organotin ethanol mercaptide is monobutyltin mono(isooctyl thioglycolate) di(ethanol mercaptide). 
     
     
       19. A heat and light stable resinous composition as defined in claim 17 wherein the organotin ethanol mercaptide is monobutyltin mono(dodecyl mercaptide) di(ethanol mercaptide). 
     
     
       20. A heat and light stable resinous composition as defined in claim 13 wherein the organotin ethanol mercaptide has the structural formula ##STR11## wherein each R represents an alkyl group having 1 to 18 carbon atoms; R&#39; represents --SCH 2  CH 2  OH, --SCH 2  COOR&#34;, or --SR&#34;;   R&#34; represents an alkyl group having 6 to 18 carbon atoms;   a, b, m, and n each represents 1 or 2;   a + b = 3; and   m + n = 3.   
     
     
       21. A heat and light stable resinous composition as defined in claim 20 wherein the organotin ethanol mercaptide is bis[monobutyltin di(ethanol mercaptide)]sulfide. 
     
     
       22. An organotin ethanol mercaptide selected from the group consisting of a. compounds having the structural formula ##STR12##  wherein R represents an alkyl group having 1 to 8 carbon atoms; R° represents --SCH 2  COOR&#34; or --SR&#34;;   R&#34; represents an alkyl group having 6 to 18 carbon atoms;   b, m, and n each represents 1 or 2; and   m + n + b = 4; and   b. compounds having the structural formula ##STR13##  wherein R and R&#34; have the aforementioned significance; R&#39; represents --SCH 2  CH 2  OH, --SCH 2  COOR&#34;, or --SR&#34;;   a, b, m, and n each represents 1 or 2;   a + b = 3; and   m + n = 3.   
     
     
       23. An organotin ethanol mercaptide as defined in claim 22 that is monobutyltin mono(isooctyl thioglycolate) di(ethanol mercaptide). 
     
     
       24. An organotin ethanol mercaptide as defined in claim 22 that is monobutyltin mono(dodecyl mercaptide) di(ethanol mercaptide). 
     
     
       25. An organotin ethanol mercaptide as defined in claim 22 that is bis[monobutyltin di(ethanol mercaptide)]sulfide.

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